JE Pistons Dirt Bike Piston Kits
JE Pistons Dirt Bike Piston Kits
With 50 years experience serving the pros, JE Pistons is the world’s leader in high-performance forged pistons for motorcycle applications. Our winning record speaks for itself, with championships in various NASCAR Series, Indy 500, Baja 1000, SCCA Trans-Am, 24 Hours of Daytona, LeMans, Paris to Dakar and many others.
• Smooth radius dome and dish designs
• Radiused valve reliefs
• Precision CNC-machined ring grooves
• Machined oil drain back holes engineered for specific oil control
• Factory honed pin bores, wrist pins and locks
• Pro Series pistons feature purpose-built forging designs that reduce overall piston weight without sacrificing strength or durability
• Pro Series pistons addition of internal and external strut braces significantly reduces stress on critical areas and improves ring groove flatness for improved ring seal during operation
Note:
HONDA CRF250R 04-09, XR400R 96-04, CRF450R 13-16, CRF450R 09-12 / KAWASAKI KX250F 06-09, KLX400 03-06, KX450F 06-14, KX450F 16-17 / SUZUKI RM-Z250 04-06, DR-Z400 00-16 / YAMAHA WR250F 05-13, YZ250F 05-13, WR450F 05-12, YZ450F 05-09 Requires boring and replating
YAMAHA YZ450F 14-17, YZ450F 10-13 O.E. piston uses 3 rings
YAMAHA YZ450F 10-13 2-ring piston kit offers lower friction and lighter weight for faster response; this design also requires shorter service intervals
KTM 450 SX-F 07-12, 450 XC-F 07-12 Must use O.E.M. ring; rings not included
KAWASAKI KX250F 06-09 Requires resleeving
HONDA CRF250R 10-15, CRF250R 04-09, CRF250X 04-17, CRF450R 13-16, CRF450R 09-12, CRF450X 02-09, CRF450X 12-13 / KAWASAKI KX250F 10-14, KX250F 06-09, KX250F 04-05, KX450F 06-14, KX450F 16-17 / KTM 450 SX-F 07-12, 450 XC-F 07-12 / SUZUKI RM-Z250 10-17, RM-Z250 07-09, RM-Z250 04-06, RM-Z450 08-12 / YAMAHA YZ450F 10-13 Pro Series
